UltraGear™ GX9s OLED gaming monitor displaying the webOS interface on a curved screen, set on a desk with stereo speakers.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
UltraGear 39-inch 5K2K Tandem OLED gaming monitor (39GX950B) with AI upscaling, Perfect Black, 143 PPI, 330Hz at WFHD, HDR 500
Introducing the smart gaming monitor, powered by webOS with AI, allowing you to relax during game breaks with effortless streaming1), including free LG Channels and numerous streaming options. Plus, access high-performance cloud gaming1) without a separate PC or console, all easily controlled with the remote2) for added convenience.
1) Internet connection and subscription to related streaming or cloud gaming services are required. Separate subscriptions or payments may be required, and they are not provided (purchased separately).
2) The remote control is included in the package.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Supported services may differ by country.
*Applies only to content produced in a 21:9 aspect ratio. For streaming content, platform restrictions may apply.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*This feature is available on webOS only and is supported on models running webOS26 or later.
Enjoy your LG Smart Monitor without compromising visual quality. AI Super Upscaling intelligently analyzes individual objects within a scene and enhances them to deliver improved picture quality, while Dynamic Tone Mapping Pro ensures balanced brightness and precise detail for each object. AI Picture Pro optimizes overall image quality, creating a clearer, more immersive viewing experience on webOS.
AI Surround Sound delivers immersive, room-filling audio with Virtual 11.1.2 Ch, creating a multi-dimensional sound experience. AI Object Remastering automatically extracts and separates dialogue, music, and effects, then remasters them for enhanced voice clarity and richer musical expression—so every word is heard clearly and each genre stays true to its original intent. Within webOS, AI Sound Pro intelligently balances sound to support a clear and immersive listening experience.
*AI Picture Pro will work with any copyright-protected content on OTT services.
*Image quality of upscaled content will vary based on the source resolution.
*AI Super Upscaling and Dynamic Tone Mapping Pro apply to smart gaming monitor equipped with the α8 processor.
*This feature is available on webOS only and is supported on models running webOS26 or later.
*Feature availability, functions, and the timing of application may vary by country, region, and language.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via USB-C or HDMI) are available. There is no fee to create an LG Account.
LG Smart Gaming Monitor highlighting LG Shield security system with network encryption, data protection, and multi layer security visualization, emphasizing secure data storage, safe transmission, and award winning smart device security technology.
*LG Shield certification may vary depending on model.
*The CES Innovation Awards are based upon descriptive materials submitted to the judges. CTA did not verify the accuracy of any submission or of any claims made and did not test the item to which the award was given.
*An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via HDMI) are available. There is no fee to create an LG Account.
Step into an expansive field of view with a 39-inch WQHD (3440×1440) curved OLED display. With a vertical height similar to that of a 16:9 (2560×1440) display, the 21:9 ultra-wide screen provides a 34% wider workspace for a more immersive viewing experience, delivering deep engagement across a variety of games.
UltraGear gaming monitor (39GX950B) delivers perfect black levels and perfect colors with 4th Gen Tandem OLED technology.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
Planetary images appear brighter and clearer on LG OLED monitors.
*Among LG OLED gaming monitors with MLA+. SDR brightness is 37.5% higher than our previous models (27GR95QE, 45GR95QE) based on published specifications.
**39GX90SB offers a peak brightness of 1300 nits, measured under internal test conditions. Actual brightness may vary by usage environment.
***Images have been simulated to enhance feature understanding, and may differ from actual use.
Immerse in the 800R curve for a consistent FOV (Field of View) on a desk designed to match natural sight, placing you at the core of its curvature. With a consistent 90-degree viewing angle across the entire screen, it delivers vivid, distortion-free graphics as you explore the gaming universe.
Racing game scene of extremely fast 0.03ms (GtG) response and a rapid 240Hz refresh rate.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*The viewing experience may vary depending on the distance from the screen and the user's posture.
Experience unparalleled depth and vibrant realism with VESA DisplayHDR true black 400, delivering detailed black expression even in the darkest scenes. With a 1.5M contrast ratio, DCI-P3 98.5% (typical) color gamut ensures that colors are displayed with realistic detail, just as originally intended.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*1.5M:1 is the contrast ratio at 25% APL (Average Picture Level) value which is given as a percentage and refers to the value between the black level and the reference level for white.
LG UltraGear's UL-verified advanced eye comfort technologies minimize frustrating reflections and are designed with visual comfort in mind, delivering crystal-clear gaming performance with consistent clarity. With UL verifications in key areas—reducing screen flicker, minimizing discomfort glare, and limiting harmful blue light exposure—these technologies promote visual comfort and contribute to a smoother gaming experience, whether you’re gaming in bright environments or LED-lit rooms.
UL verifications for Flicker Free, Discomfort Glare Free, and Low Blue Light on UltraGear OLED gaming monitor (34GX90SB).
*All pictures shown are simulated for illustration purpose only.
*LG WOLED has been verified as Flicker-Free, Discomfort Glare Free, and Low Blue Light by UL.
*Certificate Number: Flicker-Free Display (OLED) - A196009, Discomfort Glare Free - V563481 (conditions of UGR less than 22), Low Blue Light Hardware Solution Platinum - V745051.
*The above feature may vary depending on the user’s computing environment or conditions.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
Minimize tears and lags with NVIDIA® G-SYNC® compatible and AMD FreeSync™ Premium Pro technology. Experience significantly reduced screen tearing and stuttering for smooth visuals with minimized motion blur and ghosting.
UltraGear gaming monitor (34GX90SB) delivers smooth, tear-free racing gameplay with NVIDIA G-SYNC and AMD FreeSync Premium Pro.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*The performance of the feature is compared to the models not applying the sync technology.
*Errors or delays may occur depending on the network connection.
Connect your laptop to the monitor with a USB-C cable for up to 65W power delivery, eliminating the need for a separate adapter. Enjoy WQHD resolution and a 240Hz refresh rate via DP 1.4 or HDMI 2.1, ensuring your gaming remains uninterrupted.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*To work properly, the USB-C cable is required to connect the USB-C port to the monitor.
*It supports up to WQHD@240Hz refresh rate. To work properly, a graphic card that supports DP 1.4 or HDMI 2.1 cable is required.
*The graphics card is NOT included in the package.
*USB-C, DP, and HDMI cables are included in the package.
The LG Switch app helps optimize your monitor for work and everyday use on a PC. Manage windows and smart functions with your keyboard and mouse, switch between PC and webOS with shortcut keys, and arrange apps within a single input using mapped hotkeys.
*Images have been simulated to enhance feature understanding and may differ from actual use.
*LG Switch app is a PC-only application.
*Window arrangement and multi-window features are available within a single input via the LG Switch app.
*An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via HDMI) are available. There is no fee to create an LG Account.
Reducing input lag with Dynamic Action Sync, gamers can catch critical moments in real-time and respond quickly.
Black Stabilizer enhances visibility in dark scenes, revealing hidden details and improving clarity for smoother navigation through shadowy environments or sudden light changes.
The target point is fixed in the center to enhance shooting accuracy.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
Experience our space-efficient 4-side virtually borderless design featuring a fully adjustable base with swivel, tilt, and height. A clutter-free slim stand and wide-range swivel adjustment are designed to minimize desk space usage and eliminate dead space efficiently, while adding a sleeker, more refined look to your setup.
*Images have been simulated to enhance feature understanding, and may differ from actual use.
*Limited warranty. Terms and conditions may vary by country.
Product name
LG UltraGear
Year
2026
Aspect Ratio
21:9
Curvature
800R
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)
Size [Inch]
39
Response Time
0.03ms (GTG)
Resolution
3440 x 1440
Refresh Rate (Max.) [Hz]
240
Panel Type
OLED
Contrast Ratio (Typ.)
1500000:1
Color Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Color Depth (Number of Colors)
1.07B
Brightness (Typ.) [cd/m²]
275cd/m²
AMD FreeSync™
FreeSync Premium Pro
VRR
YES
Auto Brightness
YES
Black Stabilizer
YES
Color Calibrated in Factory
YES
Color Weakness
YES
Crosshair
YES
Dynamic Action Sync
YES
FPS Counter
YES
HDR 10
YES
HDR Effect
YES
NVIDIA G-Sync™
G-SYNC Compatible
PBP
2PBP
PIP
YES
RGB LED Lighting
Unity Hexagon Lighting
Smart Energy Saving
YES
User Defined Key
YES
VESA DisplayHDR™
DisplayHDR™400 TRUE BLACK
DisplayPort
YES(1ea)
LAN (RJ-45)
YES
DP Version
1.4 (DSC)
USB Downstream Port
YES(2ea/ver2.0)
USB Upstream Port
YES(via USB-C)
USB-C (Power Delivery)
65W
USB-C (Data Transsmission)
YES
USB-C
YES(1ea)
Headphone out
3-pole (Sound Only)
HDMI
YES(2ea)
AC Input
100~240V (50/60Hz)
Power Consumption (DC Off)
Less than 0.5W
Power Consumption (Sleep Mode)
Less than 0.5W
Type
External Power(Adapter)
Display Position Adjustments
Tilt/Height/Swivel
Wall Mountable [mm]
100 x 100
Dimension in Shiping (W x H x D) [mm]
985 x 338 x 550mm
Dimension without Stand (W x H x D) [mm]
887.8 x 404.4 x198.0mm
Dimension with Stand (W x H x D) [mm]
887.8 x 605.7 x 322.8mm(UP)/ 887.8 x 495.7 x 322.8mm (Down)
Weight in Shipping [kg]
17.5kg
Weight without Stand [kg]
7.30kg
Weight with Stand [kg]
11.45kg
Display Port
YES
USB-C
YES
Remote Controller
YES
HDMI
YES
Others (Accessory)
Battery (Remote Controller)
Bluetooth Connectivity
YES
Speaker
7Wx2(Max), 5Wx2(Typ)
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